Improvement in saw-mill guides



F. A. 8u C. W. OLDS. Saw-Mill Guides.

No.198,208. Patented Dec.18,1877.

INVENTORS @TMW UNITED STATES PATENT QFFICE.

FRANCIS A. OLDS AND CHARLES W. OLDS, OF MARTIN SVILLE, INDIANA.

IMPROVEMENT IN SAW-MILL GUIDES.

Speciication forming part of Letters Patent No. 198,208, dated December18, 1877 application tiled June 16, 1877.

To all whom 'it may concern:

Be it known that we, FRANCIS A. OLDs and CHARLES W. OLDs, of the town ofMartinsville, county of Morgan, and State of Indiana, have inventedcertain new and useful Improvements in Saw-Mills, of which the followingis a specification:

Reference is had to the accompanying drawings, which are made a parthereof, and on which similar letters of reference indicate similarparts.

Figure l is a front view of our invention. Fig. 2 is a side viewthereof. Fig. 3 is a transverse sectional View, showing the arrangementof the cross-head more perfectly.

The mills in which our invention is intended to be used are those knownas muleys52 and its objects are to provide means whereby thinner sawsthan those heretofore worked can be used without their being liable tospring and tremble, as thin saws usually do, and to provide a new formof cross-head specially adapted to be used with this invention.

The first object is accomplished by placing inside the usual frame forsupporting the .upper guides two strips or slides, which shall run fromsaid guides up to or beyond the top of the saw, and which shall be sosituated that the entire length of that part of the saw above saidguides shall -be steadied and stiffened by them. The lower part of thesaw, being in the cut in the log, is steadied by its own kerf. Thus theentire saw is kept nearly rigid in its position.

The second obj ect is accomplished by attaching to the front and rearedges of the top end of the saw two separate cross-arms, instead of theordinary cross-head in the center.

In the drawings, A represents a muley-saw;

B, the cross-head, constructed of the two parts b b; C C, the slidesagainst which the saw A runs; D D, the ordinary saw-guides; E E, theordinary sliding frame used to support said guides and the top end ofthe saw; F, studs forming a part of the permanent frame used to supportthe upper part of the mill; c c c c c c c c, bolts or pins used toadjust the slides C C, and to hold them in their proper positions.

As before stated, our invention enables us to use a thinner saw than hasbeen usually worked in mills of this description; and the advantages,brieiiy, are: a thin saw costs less, requires less power, is more easilykept in order, and wastes less lumber in the form of sawdust, than athick one. We can also use a greater feed, and consequently do more workthan the ordinary mill, by reason of the great steadiness of motionimparted by the slides.

Having thus fully described our invention, whatwe claim as new, anddesire to secure by Letters Patent, is-

1. The adjustable saw-guide, composed of the slides C C and theadjusting-bolts c c c c, in combination with the frame E E, arrangedsubstantially as herein shown and described, and for the purposesspecified.

2. The cross-head B, made of two separate parts, and attached andoperated substantially as herein set forth.

In witness whereof we have hereunto set our hands and seals atMartinsville, Indiana, this 11th day of June, A. D. 1877.

FRANCIS A. oLDs. [ns1 CHARLES w. oLDs. [L sj In presence of- HENRY H.OLns, JOHN W. Cox.

